Side by side

Denshees vs Mails.ai

Both stand on cold email software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Denshees

Free plan Self-hostedWeb

Denshees pairs outreach management with a separate job-search pack for company research and tailored application documents. Users need to connect their own email accounts, and Job Hunt Pack usage is capped per company.

Visit Denshees

Mails.ai

Free plan APIWeb

Mails.ai combines agent-focused email handling with structured inbound data and injection scanning. Its plan caps and exclusions matter: sends stop at the cap, and cold outreach is not supported.

Visit Mails.ai

The facts

	Denshees	Mails.ai
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	Self-hosted, Web	API, Web
Lowest paid plan	Job Hunt Pack: ₹999, paid once	Pro: $20 a month
Plans published	3	3
Maker	Not published	Not published
Website	denshees.com	mails.ai
On cold email software	#1 of 35	#4 of 35

Denshees: what it does well

Free self-hosted plan has unlimited campaigns and contacts
Assistant accepts plain-language campaign requests
Tracks email opens and replies
Job Hunt Pack prepares tailored application PDFs
Denshees lists encryption and security reviews

What to know first

Job Hunt Pack limits each company to 10 contacts
Job Hunt Pack limits each company to 50 sends
Top-up costs 499.00 INR one-time
Job Hunt Pack costs 999.00 INR one-time

Mails.ai: what it does well

Structured inbound replies include headers and attachments
All plans scan messages for prompt injection
REST, webhooks, MCP server, and SDKs
Free plan includes 3,000 monthly events
Lists integrations with agent frameworks and tools

What to know first

Cold outreach is refused at the API
No SOC 2 today; HIPAA is outside Phase 1
Over-cap inbound replies are not scanned or sent to webhooks
Dedicated IP is an on-request roadmap add-on

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